Home / 91,591.12-137,207.80-63,123.02

Finding the Fourth Proportional to 91,591.12, 137,207.80 and 63,123.02

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Solution

The fourth proportional to 91,591.12, 137,207.80 and 63,123.02 is: 94,561.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,591.12 : 137,207.80 = 63,123.02 : x
  2. Step 2: Convert to fraction form
    91,591.12/137,207.80 = 63,123.02/x
  3. Step 3: Cross multiply
    91,591.12x = 137,207.80 × 63,123.02
  4. Step 4: Simplify right side
    91,591.12x = 8,660,970,703.56
  5. Step 5: Solve for x
    x = 8,660,970,703.56/91,591.12
  6. Step 6: Final answer
    x = 94,561.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.